Effect of sodium laurate on the properties of sodium lauroyl glutamate  

月桂酸钠对月桂酰基谷氨酸钠的性能影响

作　　者：Guofang Gao Yadan Feng Ziwei Diao Yongqiang Sun Zhiyong Hu Hailin Zhu 高国芳;冯亚丹;刁梓薇;孙永强;胡志勇;朱海林(中北大学化学与化工学院,山西太原030051)

机构地区：[1]School of Chemistry and Chemical Engineering,North University of China,Taiyuan,Shanxi 030051,China

出　　处：《日用化学工业(中英文)》2025年第4期446-452,共7页China Surfactant Detergent & Cosmetics

基　　金：山西省自然科学基金面上项目(202103021224207);中北大学研究生科技立项(20231926)。

摘　　要：In this paper,the effect of sodium laurate(SL)on the properties of sodium lauroyl glutamate(SLG),such as surface activity,foam,wetting,emulsification,and resistance to hard water,has been systematically investigated.The results showed that the critical micelle concentration(cmc)of SLG was 0.30 mmol/L,and the surface tension at the cmc(γcmc)was 34.95 mN/m.With the increase of SL content,the efficiency of SLG solution in reducing the surface tension was decreased.When the SL content was increased,there was no significant change in the foaming ability and foam stability of SLG solutions.The increase of SL content improved both the emulsification and wettability of SLG,but reduced its water resistance.以月桂酰基谷氨酸钠(SLG)为研究对象,分析了月桂酸钠(SL)的含量对其表面活性参数、泡沫性能、润湿性能、乳化性能以及抗硬水能力的综合影响。结果显示,SLG的临界胶束浓度(cmc)为0.30 mmol/L,对应的表面张力(γcmc)为34.95 mN/m;随着SL含量的增加,SLG-SL混合溶液降低表面张力的效率下降。在泡沫性能方面,随着SL含量的增加,SLG的起泡性和稳泡性无显著变化。SLG的乳化性和润湿性随SL含量的增加均有所提升;而SL会降低SLG的抗硬水能力。

关 键 词：sodium lauroyl glutamate sodium laurate surface activity emulsification properties wetting properties 

分 类 号：TQ423[化学工程]